Peter Y. Solmssen (born in 1955 in Philadelphia, PA) is an American lawyer and business executive who served as general counsel of Siemens AG, the German engineering company, until November 2013.

His first assignment was on the defense team advising the Dan River Corporation which was resisting a hostile, all-cash tender offer from companies controlled by Carl Icahn.

He also initiated ground-breaking collective action in the diagnostic imaging industry which culminated in the NEMA (National Electrical Manufacturers Association) Code.

[9] Siemens was in the early stages of a corruption scandal which had commenced in Munich and quickly spread to other countries, endangering the company's survival.

[11] As the new general counsel at Siemens, Solmssen faced the unusual challenge of rebuilding a compliance function that the bribery scandal had exposed as not only weak but sometimes corrupt.

[12] Solmssen and Löscher undertook an intense effort to resolve outstanding cases, change the culture, redesign compliance processes and make adherence to law and ethics a critical part of performance appraisals.

For the first time in the history of the enforcement of the Foreign Corrupt Practices Act, the United States Department of Justice recommended penalties lower than those prescribed by federal sentencing guidelines.

The appointment of Theo Waigel, the former Finance Minister of Germany who had been recruited by Solmssen, was groundbreaking and an important component of the successful implementation of the Siemens compliance program.

Despite having admitted to massive corruption in 2008, Siemens was referred to by President Barack Obama in two successive State of the Union addresses for its commitment to vocational education and support for increased infrastructure focus.

In October 2016, Solmssen replaced Tom Russo as EVP and General Counsel of AIG, heading up the global legal, compliance, and regulatory functions.